Heating system



April 1929. R. c. KERLAOUEZO ET AL 1,708,580

HEATING SYSTEM Filed Sept- 17, 1927 2 Sheets-Sheet 1 INVENTORSAYMONDCfrERLAOl/EIG LLEWL'LLY/V I/V. EVA/vs BY SEW/ARC B-MERH'VATTORNEYS Patented Apr, 9, 1929.

UNITED STATES ,PATENT or FICE.

RAYMOND CECIL I KERLAOUEZO, LLEVELLYN VVILKIE EVANS, AND SE-WARD BRYANMERRY, OF RICHMOND, CALIFORNIA, ASSIGNORS TOTHE REPUBLIC STEEL PACK- AGECOMPANY, OF RICHMOND, CALIFORNIA.

HEATING SYSTEM.

Application filed September 17, 1927. Serial No.-220,2 16.

The present invention relates to improvements in heating systems forhouses and has for its particular object to provide electricallyoperated means whereby the various rooms 5 of a house may be quickly andindividually heated to a certain temperature while means are providedfor regulating the heat so that the heating system is automatically shutoff relative to each individual room, the tempera- 'ture of which hasreached a predetermined degree.

It is particularly proposed to use for this purpose a forced draft ofheated air which is adapted to heat the room very quickly so that only ashort time is required for the heating means to be active. We have foundby actual experience that rooms may be heated much more economically inthis manner than they can by the application of constant heat and infact we have proven that our manner of heating reduces the cost ofelectric heating to that of any other heating means ordinarilyavailable, even when the cost of electric current is comparatively high.

Other and further objects and advantages of our invention will appear asthe speeification proceeds.

The preferred form of our invention is illustrated in the accompanyingdrawing, in which Figure 1 shows a general diagrammatic view explainingour heating system;

Figure 2 a detail view of a heat responsive switch used in connectiontherewith, and

Figure 3 is a wiring diagram of a modified form of the device.

WVhile we have shown only the preferred form of our invention we wishtohave it understood that various changes or modifications may be madewithin the scope of the claims hereto attached without departing fromthe spirit of the invention.

In its preferred form our invention comprises a heating chamber 1serving as a furmace and preferably comprising a cylinder having aplurality of electric heating elements 2 assembled therein in such amanner that a draft-may be directed through the barrel to flow past theheating elements into a number of flues leading to different rooms of ahouse, roughly indicated at 4. The heating chamber 1 which in itsfunction comares with the furnace now ordinarily used,

is preferably placed in the basement of a house. i A fan 6 is mountedrelative to the wall of the heating chamber to blow a draft through thesame in the manner previously The heat responsive element is formed insuch a manner as to also control the heating means and the motor 7, aswill be more easily understood by reference to the wiring diagram. Inthe latter it is assumed that the motor and the heating elements areoperated by means of a three-phase system, while the solenoid isoperated by a single-phase.

The three main wires 16, 17 and 18 are controlled by a manually operatedswitch 19 which renders the entire system either active or inactive. Asecond switch 20 is provided in the three wires which is normally heldopen by means of a spring 21 and which may be closed by means of anelectromagnet 22 of a circuit comprising the wire 16, the wires 23, 24and 26, the heat responsive element 27 of the thermostat 14, the contact28, and the wires 29 and 31. It will be noted that the switch 20 closeswhen the temperature in any one of the 'rooms' containing a thermostatdrops below a predetermined temperature, so that the heat responsiveelement 27 makes contact with the stationary contact 28. The closing ofthe switch 20 carries the current through the wires 16, 17 and 18 to theheating elements 2 and through wires 31, 32 and 33 to the motor 7.

When theheat responsive element 27 engages the contact 28 it alsoengages a second contact 84 and thereby closes a circuit comprising thewires 16, 28 and 36, the solenoid 9, the wire 37, the heatresponsiveelement 27, the contacts 34 and'28, and the wires 29 and 31, so that thesolenoid is energized and opens the flue to full capacity. It will benoted from this, arrangement that whenever the heat responsive element27 moves toward the contacts 28 and 34in any one of the rooms the heaterand the motor 7 are rendered active, I

while at the same time the damper or shutter is opened in the flueleading to that particular room, while all the other dampers or shuttersremain closed. When therefore the temperature in a single room fallsbelow that desired the entire blast is rendered active and directedtoward that single room without affecting the other rooms, thus causingthe temperature in the individual room to rise almost immediately to adesired degree. As long as all the rooms maintain a desired temperaturethe motor and the heater are automatically rendered inactive, and theshutters close automatically.

The entire system is rendered inoperative by the opening of the switch19.

It should be understood that while in the present application ourinvention has been described as a heating system, the outstandingfeatures thereof may be equally well used in connection with a coolingsystem, in which case cooling coils might be substituted for the heateror mere circulation of air be relied on for producing the describedeffect. It should further be noted that the inventor does not dependupon any particular kind of the outlet opening of the flue 3. Thiselement is connected by means of a switch 51 to the current flowingthrough wires 17 and 18. Wires 52 and 53 are tapped to the wires 17 and18 and are connected to wires 54 and 55 when the switch 51 is closed.

The switch 51 is magnetically controlled by means of a magnet 56 whichis connected by a wire 57 to' the wire 37 and by a wire 58 to the wire86. lVhen the thermostat 27 closes it will cause a current to flowthrough the magnet 56 which, in turn, closes the switch 51. A currentwill now flow through the heating element 50 and will warm the air justprior to its entrance into the room at. We have found that in tallbuildings the air flowing through flues extending from the basement to,say, the twenty-third story, will become cool before reaching the roomin question on the twenty-third floor. In order to overcome this weprovide heating elements at the exhaust ends of the flues, although thefan is positioned at the entrance of the flues, If desired, acombination of heating members in the basement and additional heatingmembers at the exhaust ends of each flue may be used. The switch 51 isopened by a spring 59 when the magnet 56 is de-energized.

We claim:

1. In a heating system for a house, a flue leading to a room thereof,means controlling the port area of the flue, means for blowing airtherethrough into the room, means for heating the air andtemperature-responsive means controlling the said three means.

2. In a heating system for a house, a plurality of flues, leading to thedifferent rooms thereof, means for controlling the port area of eachflue, means for blowing air through the flues into the rooms, means forheating the air and tempei'ature-responsi\'c means in each roomcontrolling the blowing means and the heating means and the port area ofthe flue leading to the particular room.

3. In a device of the type described, a blower fan, flues extending fromsaid fan to various rooms in the building, heating elements disposed atthe exhaust ends of said flues, and thermostatically controlled meansfor controlling the current through said heating elements.

4. A device of the type described comprising flues for conducting airinto rooms, heating elements disposed at the exhaust ends of said fluesand thermostats disposed in each room and being electrically connectedwith said heating elements.

RAYMOND CECIL KERLAOUEZO.

LIJEIVELLYN WILKIE EVANS.

SEVVARD BRYAN MERRY.

